[ViewVC] Diff of: cvs/deliantra/server/lib/cf.pm

Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.16 by root, Mon Jun 12 13:25:27 2006 UTC vs.
Revision 1.40 by root, Fri Aug 25 15:21:57 2006 UTC

…		…
1	package cf;	1	package cf;
2		2
3	use Symbol;	3	use Symbol;
4	use List::Util;	4	use List::Util;
5	use Storable;	5	use Storable;
		6	use Opcode;
		7	use Safe;
		8	use Safe::Hole;
		9
		10	use Time::HiRes;
		11	use Event;
		12	$Event::Eval = 1; # no idea why this is required, but it is
6		13
7	use strict;	14	use strict;
8		15
9	our %COMMAND;	16	our %COMMAND = ();
10	our @EVENT;	17	our @EVENT;
		18	our @PLUGIN_EVENT;
11	our %PROP_TYPE;	19	our %PROP_TYPE;
12	our %PROP_IDX;	20	our %PROP_IDX;
		21	our $LIBDIR = maps_directory "perl";
		22
		23	our $TICK = MAX_TIME * 1e-6;
		24	our $TICK_WATCHER;
		25	our $NEXT_TICK;
13		26
14	BEGIN {	27	BEGIN {
15	@EVENT = map lc, @EVENT;	28	@PLUGIN_EVENT = map lc, @PLUGIN_EVENT;
16		29
17	*CORE::GLOBAL::warn = sub {	30	*CORE::GLOBAL::warn = sub {
18	my $msg = join "", @_;	31	my $msg = join "", @_;
19	$msg .= "\n"	32	$msg .= "\n"
20	unless $msg =~ /\n$/;	33	unless $msg =~ /\n$/;
58	prop_gen MAP_PROP => "cf::map";	71	prop_gen MAP_PROP => "cf::map";
59	prop_gen ARCH_PROP => "cf::arch";	72	prop_gen ARCH_PROP => "cf::arch";
60		73
61	# guessed hierarchies	74	# guessed hierarchies
62		75
63	@cf::object::player::ISA = 'cf::object';	76	@ext::cf::object::player::ISA = @cf::object::player::ISA = 'cf::object';
64	@cf::object::map::ISA = 'cf::object';	77	@ext::cf::object::map::ISA = @cf::object::map::ISA = 'cf::object';
		78
		79	# we bless all objects into derived classes to force a method lookup
		80	# within the Safe compartment.
		81	for my $pkg (qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region cf::arch)) {
		82	no strict 'refs';
		83	@{"ext::$pkg\::wrap::ISA"} = @{"$pkg\::wrap::ISA"} = $pkg;
		84	}
		85
		86	$Event::DIED = sub {
		87	warn "error in event callback: @_";
		88	};
65		89
66	my %ext_pkg;	90	my %ext_pkg;
67	my @exts;	91	my @exts;
68	my @hook;	92	my @hook;
69	my %command;	93	my %command;
70	my %extcmd;	94	my %extcmd;
71		95
		96	#############################################################################
		97	# "new" plug-in system
		98
		99	=item cf::object::attach ... # NYI
		100
		101	=item cf::attach_global ...
		102
		103	=item cf::attach_to_type ...
		104
		105	=item cf::attach_to_objects ...
		106
		107	=item cf::attach_to_players ...
		108
		109	=item cf::attach_to_maps ...
		110
		111	prio => $number, # lower is earlier
		112	on_xxx => \&cb,
		113	package => package::,
		114
		115	=cut
		116
		117	# the following variables are defined in .xs and must not be re-created
		118	our @CB_GLOBAL = (); # registry for all global events
		119	our @CB_OBJECT = ();
		120	our @CB_PLAYER = ();
		121	our @CB_TYPE = (); # registry for type (cf-object class) based events
		122	our @CB_MAP = ();
		123
		124	sub _attach_cb($\%$$$) {
		125	my ($registry, $undo, $event, $prio, $cb) = @_;
		126
		127	use sort 'stable';
		128
		129	$cb = [$prio, $cb];
		130
		131	@{$registry->[$event]} = sort
		132	{ $a->[0] cmp $b->[0] }
		133	@{$registry->[$event] \|\| []}, $cb;
		134
		135	push @{$undo->{cb}}, [$event, $cb];
		136	}
		137
		138	# attach handles attaching event callbacks
		139	# the only thing the caller has to do is pass the correct
		140	# registry (== where the callback attaches to).
		141	sub _attach(\@$\@) {
		142	my ($registry, $klass, $arg) = @_;
		143
		144	my $prio = 0;
		145
		146	my %undo = (
		147	registry => $registry,
		148	cb => [],
		149	);
		150
		151	my %cb_id = map +("on_" . lc $EVENT[$_][0], $_) , grep $EVENT[$_][1] == $klass, 0 .. $#EVENT;
		152
		153	while (@$arg) {
		154	my $type = shift @$arg;
		155
		156	if ($type eq "prio") {
		157	$prio = shift @$arg;
		158
		159	} elsif ($type eq "package") {
		160	my $pkg = shift @$arg;
		161
		162	while (my ($name, $id) = each %cb_id) {
		163	if (my $cb = $pkg->can ($name)) {
		164	_attach_cb $registry, %undo, $id, $prio, $cb;
		165	}
		166	}
		167
		168	} elsif (exists $cb_id{$type}) {
		169	_attach_cb $registry, %undo, $cb_id{$type}, $prio, shift @$arg;
		170
		171	} elsif (ref $type) {
		172	warn "attaching objects not supported, ignoring.\n";
		173
		174	} else {
		175	shift @$arg;
		176	warn "attach argument '$type' not supported, ignoring.\n";
		177	}
		178	}
		179
		180	\%undo
		181	}
		182
		183	sub cf::object::attach {
		184	die;
		185	}
		186
		187	sub attach_global {
		188	_attach @CB_GLOBAL, KLASS_GLOBAL, @_
		189	}
		190
		191	sub attach_to_type {
		192	my $type = shift;
		193	_attach @{$CB_TYPE[$type]}, KLASS_OBJECT, @_
		194	}
		195
		196	sub attach_to_objects {
		197	_attach @CB_OBJECT, KLASS_OBJECT, @_
		198	}
		199
		200	sub attach_to_players {
		201	_attach @CB_PLAYER, KLASS_PLAYER, @_
		202	}
		203
		204	sub attach_to_maps {
		205	_attach @CB_MAP, KLASS_MAP, @_
		206	}
		207
		208	our $override;
		209
		210	sub override() {
		211	$override = 1
		212	}
		213
		214	sub invoke {
		215	my $event = shift;
		216	my $callbacks = shift;
		217
		218	local $override;
		219
		220	for (@$callbacks) {
		221	eval { &{$_->[1]} };
		222
		223	if ($@) {
		224	warn "$@";
		225	warn "... while processing $EVENT[$event][0] event, skipping processing altogether.\n";
		226	override;
		227	}
		228
		229	return 1 if $override;
		230	}
		231
		232	0
		233	}
		234
		235	#############################################################################
		236	# old plug-in events
		237
72	sub inject_event {	238	sub inject_event {
73	my $extension = shift;	239	my $extension = shift;
74	my $event_code = shift;	240	my $event_code = shift;
75		241
76	my $cb = $hook[$event_code]{$extension}	242	my $cb = $hook[$event_code]{$extension}
…		…
118	}	284	}
119		285
120	sub register {	286	sub register {
121	my ($base, $pkg) = @_;	287	my ($base, $pkg) = @_;
122		288
123	for my $idx (0 .. $#EVENT) {	289	for my $idx (0 .. $#PLUGIN_EVENT) {
124	if (my $ref = $pkg->can ("on_$EVENT[$idx]")) {	290	if (my $ref = $pkg->can ("on_$PLUGIN_EVENT[$idx]")) {
125	#warn "registering $EVENT[$idx] hook to '$pkg'\n";	291	#warn "registering $PLUGIN_EVENT[$idx] hook to '$pkg'\n";
126	$hook[$idx]{$base} = $ref;	292	$hook[$idx]{$base} = $ref;
127	}	293	}
128	}	294	}
129	}	295	}
130		296
…		…
153		319
154	push @exts, $pkg;	320	push @exts, $pkg;
155	$ext_pkg{$base} = $pkg;	321	$ext_pkg{$base} = $pkg;
156		322
157	# no strict 'refs';	323	# no strict 'refs';
158	# @{"$pkg\::ISA"} = cf::ext::;	324	# @{"$pkg\::ISA"} = ext::;
159		325
160	register $base, $pkg;	326	register $base, $pkg;
161	}	327	}
162		328
163	sub unload_extension {	329	sub unload_extension {
164	my ($pkg) = @_;	330	my ($pkg) = @_;
165		331
166	warn "removing extension $pkg\n";	332	warn "removing extension $pkg\n";
167		333
168	# remove hooks	334	# remove hooks
169	for my $idx (0 .. $#EVENT) {	335	for my $idx (0 .. $#PLUGIN_EVENT) {
170	delete $hook[$idx]{$pkg};	336	delete $hook[$idx]{$pkg};
171	}	337	}
172		338
173	# remove commands	339	# remove commands
174	for my $name (keys %command) {	340	for my $name (keys %command) {
…		…
186	# remove extcmds	352	# remove extcmds
187	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {	353	for my $name (grep $extcmd{$_}[1] eq $pkg, keys %extcmd) {
188	delete $extcmd{$name};	354	delete $extcmd{$name};
189	}	355	}
190		356
		357	if (my $cb = $pkg->can ("on_unload")) {
		358	eval {
		359	$cb->($pkg);
		360	1
		361	} or warn "$pkg unloaded, but with errors: $@";
		362	}
		363
191	Symbol::delete_package $pkg;	364	Symbol::delete_package $pkg;
192	}	365	}
193		366
194	sub load_extensions {	367	sub load_extensions {
195	my $LIBDIR = maps_directory "perl";	368	my $LIBDIR = maps_directory "perl";
…		…
201	1	374	1
202	} or warn "$ext not loaded: $@";	375	} or warn "$ext not loaded: $@";
203	}	376	}
204	}	377	}
205		378
		379	sub _perl_reload(&) {
		380	my ($msg) = @_;
		381
		382	$msg->("reloading...");
		383
		384	eval {
		385	# 1. cancel all watchers
		386	$_->cancel for Event::all_watchers;
		387
		388	# 2. unload all extensions
		389	for (@exts) {
		390	$msg->("unloading <$_>");
		391	unload_extension $_;
		392	}
		393
		394	# 3. unload all modules loaded from $LIBDIR
		395	while (my ($k, $v) = each %INC) {
		396	next unless $v =~ /^\Q$LIBDIR\E\/.*\.pm$/;
		397
		398	$msg->("removing <$k>");
		399	delete $INC{$k};
		400
		401	$k =~ s/\.pm$//;
		402	$k =~ s/\//::/g;
		403
		404	if (my $cb = $k->can ("unload_module")) {
		405	$cb->();
		406	}
		407
		408	Symbol::delete_package $k;
		409	}
		410
		411	# 4. get rid of ext::, as good as possible
		412	Symbol::delete_package "ext::$_"
		413	for qw(cf::object cf::object::map cf::object::player cf::player cf::map cf::party cf::region);
		414
		415	# 5. remove register_script_function callbacks
		416	# TODO
		417
		418	# 6. unload cf.pm "a bit"
		419	delete $INC{"cf.pm"};
		420
		421	# don't, removes xs symbols, too
		422	#Symbol::delete_package __PACKAGE__;
		423
		424	# 7. reload cf.pm
		425	$msg->("reloading cf.pm");
		426	require cf;
		427	};
		428	$msg->($@) if $@;
		429
		430	$msg->("reloaded");
		431	};
		432
		433	sub perl_reload() {
		434	_perl_reload {
		435	warn $_[0];
		436	print "$_[0]\n";
		437	};
		438	}
		439
206	register_command "perl-reload", 0, sub {	440	register_command "perl-reload", 0, sub {
207	my ($who, $arg) = @_;	441	my ($who, $arg) = @_;
208		442
209	if ($who->flag (FLAG_WIZ)) {	443	if ($who->flag (FLAG_WIZ)) {
210	$who->message ("reloading...");	444	_perl_reload {
211		445	warn $_[0];
212	warn "reloading...\n";	446	$who->message ($_[0]);
213	eval {
214	unload_extension $_ for @exts;
215	delete $INC{"cf.pm"};
216
217	# don't, removes xs symbols, too
218	#Symbol::delete_package $pkg;
219
220	require cf;
221	};	447	};
222	warn $@ if $@;
223	$who->message ($@) if $@;
224	warn "reloaded\n";
225
226	$who->message ("reloaded");
227	} else {
228	$who->message ("Intruder Alert!");
229	}	448	}
230	};	449	};
231		450
232	#############################################################################	451	#############################################################################
		452	# utility functions
		453
		454	use JSON::Syck (); # TODO# replace by JSON::PC once working
		455
		456	sub from_json($) {
		457	$JSON::Syck::ImplicitUnicode = 1; # work around JSON::Syck bugs
		458	JSON::Syck::Load $_[0]
		459	}
		460
		461	sub to_json($) {
		462	$JSON::Syck::ImplicitUnicode = 0; # work around JSON::Syck bugs
		463	JSON::Syck::Dump $_[0]
		464	}
		465
		466	#############################################################################
233	# extcmd framework, basically convert ext <id> <pkg> arg1 args	467	# extcmd framework, basically convert ext <msg>
234	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few	468	# into pkg::->on_extcmd_arg1 (...) while shortcutting a few
235		469
236	sub on_extcmd {	470	sub on_extcmd {
237	my ($pl, $buf) = @_;	471	my ($pl, $buf) = @_;
238		472
239	my ($type) = $buf =~ s/^(\S+) // ? $1 : "";	473	my $msg = eval { from_json $buf };
240		474
241	$extcmd{$type}[0]->($pl, $buf)	475	if (ref $msg) {
242	if $extcmd{$type};	476	if (my $cb = $extcmd{$msg->{msgtype}}) {
		477	if (my %reply = $cb->[0]->($pl, $msg)) {
		478	$pl->ext_reply ($msg->{msgid}, %reply);
		479	}
		480	}
		481	} else {
		482	warn "player " . ($pl->ob->name) . " sent unparseable ext message: <$buf>\n";
		483	}
		484
		485	1
243	}	486	}
244		487
245	#############################################################################	488	#############################################################################
246	# load/save/clean perl data associated with a map	489	# load/save/clean perl data associated with a map
247		490
248	*on_mapclean = sub {	491	*cf::mapsupport::on_clean = sub {
249	my ($map) = @_;	492	my ($map) = @_;
250		493
251	my $path = $map->tmpname;	494	my $path = $map->tmpname;
252	defined $path or return;	495	defined $path or return;
253		496
254	unlink "$path.cfperl";	497	unlink "$path.cfperl";
255	};	498	};
256		499
257	*on_mapin =	500	*cf::mapsupport::on_swapin =
258	*on_mapload = sub {	501	*cf::mapsupport::on_load = sub {
259	my ($map) = @_;	502	my ($map) = @_;
260		503
261	my $path = $map->tmpname;	504	my $path = $map->tmpname;
262	$path = $map->path unless defined $path;	505	$path = $map->path unless defined $path;
263		506
…		…
270	or return; # too new	513	or return; # too new
271		514
272	$map->_set_obs ($data->{obs});	515	$map->_set_obs ($data->{obs});
273	};	516	};
274		517
275	*on_mapout = sub {	518	*cf::mapsupport::on_swapout = sub {
276	my ($map) = @_;	519	my ($map) = @_;
277		520
278	my $path = $map->tmpname;	521	my $path = $map->tmpname;
279	$path = $map->path unless defined $path;	522	$path = $map->path unless defined $path;
280		523
…		…
297	} else {	540	} else {
298	unlink "$path.cfperl";	541	unlink "$path.cfperl";
299	}	542	}
300	};	543	};
301		544
		545	attach_to_maps prio => -10000, package => cf::mapsupport::;
		546
302	#############################################################################	547	#############################################################################
303	# load/save perl data associated with player->ob objects	548	# load/save perl data associated with player->ob objects
304		549
305	*on_player_load = sub {	550	sub all_objects(@) {
		551	@_, map all_objects ($_->inv), @_
		552	}
		553
		554	attach_to_players
		555	on_load => sub {
306	my ($ob, $path) = @_;	556	my ($pl, $path) = @_;
307		557
308	if (open my $fh, "<:raw", "$path.cfperl") {	558	for my $o (all_objects $pl->ob) {
309
310	#d##TODO#remove
311
312	my $data = Storable::thaw do { local $/; <$fh> };
313
314	$data->{version} <= 1
315	or return; # too new
316
317	%$ob = %{$data->{ob}};
318	return;
319	}
320
321	for my $o ($ob, $ob->inv) {
322	if (my $value = $o->get_ob_key_value ("_perl_data")) {	559	if (my $value = $o->get_ob_key_value ("_perl_data")) {
323	$o->set_ob_key_value ("_perl_data");	560	$o->set_ob_key_value ("_perl_data");
324		561
325	%$o = %{ Storable::thaw pack "H*", $value };	562	%$o = %{ Storable::thaw pack "H*", $value };
		563	}
326	}	564	}
327	}	565	},
328	};	566	on_save => sub {
329
330	*on_player_save = sub {
331	my ($ob, $path) = @_;	567	my ($pl, $path) = @_;
332		568
333	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)	569	$_->set_ob_key_value (_perl_data => unpack "H*", Storable::nfreeze $_)
334	for grep %$_, $ob, $ob->inv;	570	for grep %$_, all_objects $pl->ob;
		571	},
		572	;
335		573
336	unlink "$path.cfperl";#d##TODO#remove	574	#############################################################################
337	};	575	# core extensions - in perl
		576
		577	=item cf::player::exists $login
		578
		579	Returns true when the given account exists.
		580
		581	=cut
		582
		583	sub cf::player::exists($) {
		584	cf::player::find $_[0]
		585	or -f sprintf "%s/%s/%s/%s.pl", cf::localdir, cf::playerdir, ($_[0]) x 2;
		586	}
		587
		588	=item $player->reply ($npc, $msg[, $flags])
		589
		590	Sends a message to the player, as if the npc C<$npc> replied. C<$npc>
		591	can be C<undef>. Does the right thing when the player is currently in a
		592	dialogue with the given NPC character.
		593
		594	=cut
		595
		596	# rough implementation of a future "reply" method that works
		597	# with dialog boxes.
		598	sub cf::object::player::reply($$$;$) {
		599	my ($self, $npc, $msg, $flags) = @_;
		600
		601	$flags = cf::NDI_BROWN \| cf::NDI_UNIQUE unless @_ >= 4;
		602
		603	if ($self->{record_replies}) {
		604	push @{ $self->{record_replies} }, [$npc, $msg, $flags];
		605	} else {
		606	$msg = $npc->name . " says: $msg" if $npc;
		607	$self->message ($msg, $flags);
		608	}
		609	}
		610
		611	=item $player->ext_reply ($msgid, $msgtype, %msg)
		612
		613	Sends an ext reply to the player.
		614
		615	=cut
		616
		617	sub cf::player::ext_reply($$$%) {
		618	my ($self, $id, %msg) = @_;
		619
		620	$msg{msgid} = $id;
		621
		622	$self->send ("ext " . to_json \%msg);
		623	}
		624
		625	#############################################################################
		626	# map scripting support
		627
		628	our $safe = new Safe "ext";
		629	our $safe_hole = new Safe::Hole;
		630
		631	$SIG{FPE} = 'IGNORE';
		632
		633	$safe->permit_only (Opcode::opset qw(:base_core :base_mem :base_orig :base_math sort time));
		634
		635	# here we export the classes and methods available to script code
		636
		637	for (
		638	["cf::object" => qw(contr pay_amount pay_player)],
		639	["cf::object::player" => qw(player)],
		640	["cf::player" => qw(peaceful)],
		641	) {
		642	no strict 'refs';
		643	my ($pkg, @funs) = @$_;
		644	*{"ext::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
		645	for @funs;
		646	}
		647
		648	sub safe_eval($;@) {
		649	my ($code, %vars) = @_;
		650
		651	my $qcode = $code;
		652	$qcode =~ s/"/‟/g; # not allowed in #line filenames
		653	$qcode =~ s/\n/\\n/g;
		654
		655	local $_;
		656	local @ext::cf::_safe_eval_args = values %vars;
		657
		658	$code =
		659	"do {\n"
		660	. "my (" . (join ",", map "\$$_", keys %vars) . ") = \@cf::_safe_eval_args;\n"
		661	. "#line 0 \"{$qcode}\"\n"
		662	. $code
		663	. "\n}"
		664	;
		665
		666	sub_generation_inc;
		667	my @res = wantarray ? $safe->reval ($code) : scalar $safe->reval ($code);
		668	sub_generation_inc;
		669
		670	wantarray ? @res : $res[0]
		671	}
		672
		673	sub register_script_function {
		674	my ($fun, $cb) = @_;
		675
		676	no strict 'refs';
		677	*{"ext::$fun"} = $safe_hole->wrap ($cb);
		678	}
		679
		680	#############################################################################
		681	# the server's main()
		682
		683	sub main {
		684	Event::loop;
		685	}
		686
		687	#############################################################################
		688	# initialisation
338		689
339	register "<global>", __PACKAGE__;	690	register "<global>", __PACKAGE__;
340		691
		692	unshift @INC, $LIBDIR;
		693
341	load_extensions;	694	load_extensions;
342		695
		696	$TICK_WATCHER = Event->timer (
		697	prio => 1,
		698	at => $NEXT_TICK \|\| 1,
		699	cb => sub {
		700	cf::server_tick; # one server iteration
		701
		702	my $NOW = Event::time;
		703	$NEXT_TICK += $TICK;
		704
		705	# if we are delayed by four ticks, skip them all
		706	$NEXT_TICK = $NOW if $NOW >= $NEXT_TICK + $TICK * 4;
		707
		708	$TICK_WATCHER->at ($NEXT_TICK);
		709	$TICK_WATCHER->start;
		710	},
		711	);
		712
343	1	713	1
344		714

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Comparing deliantra/server/lib/cf.pm (file contents): Revision 1.16 by root, Mon Jun 12 13:25:27 2006 UTC vs. Revision 1.40 by root, Fri Aug 25 15:21:57 2006 UTC

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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.16 by root, Mon Jun 12 13:25:27 2006 UTC vs.
Revision 1.40 by root, Fri Aug 25 15:21:57 2006 UTC